Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

[efa]

Ubuntu 10.04 on a NetPC, after a synaptic upgrade that installed kernels:
2.6.32-23-generic
2.6.32-24-generic
I got always this error on boot:
[ 1.148845] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)..
The same happen booting in recovery mode.

Everything work as expected with the old one:
2.6.32-22-generic
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC1200 Analog [ALC1200 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC1200 Analog [ALC1200 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: efa 1047 F.... pulseaudio
BugPatternURL: https://bugs.launchpad.net/bugs/452814
CRDA: Error: [Errno 2] Nessun file o directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xffe00000 irq 16'
   Mixer name : 'Realtek ALC1200'
   Components : 'HDA:10ec0888,14620110,00100101'
   Controls : 17
   Simple ctrls : 10
CheckboxSubmission: 1aa4f9eb5e0a5a3a07e8e922b2e9d80f
CheckboxSystem: 775fcefe2ffae0651480113c04106442
DistroRelease: Ubuntu 10.04
HibernationDevice: RESUME=UUID=dd42b2fe-5e5b-4785-ad61-bc06ce23ba58
MachineType: MICRO-STAR INTERNATIONAL CO., LTD U90/U100
Package: linux (not installed)
ProcCmdLine: root=UUID=b6b40fc0-d8eb-4901-9876-6b7ebb6417f9 ro quiet #splash
ProcEnviron:
 PATH=(custom, user)
 LANG=it_IT.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
Regression: Yes
RelatedPackageVersions: linux-firmware 1.34.1
Reproducible: Yes
RfKill:

StagingDrivers: rtl8187se
Tags: lucid kconfig regression-release needs-upstream-testing staging
Title: [STAGING]
Uname: Linux 2.6.32-22-generic i686
UserGroups: adm admin audio cdrom dialout dip fax fuse lpadmin netdev plugdev sambashare scanner tape video
WpaSupplicantLog:

dmi.bios.date: 05/21/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.3
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: U90/U100
dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD
dmi.board.version: Ver.001
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: MICRO-STAR INTERNATIONAL CO., LTD
dmi.chassis.version: Ver.001
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.3:bd05/21/2009:svnMICRO-STARINTERNATIONALCO.,LTD:pnU90/U100:pvrVer.001:rvnMICRO-STARINTERNATIONALCO.,LTD:rnU90/U100:rvrVer.001:cvnMICRO-STARINTERNATIONALCO.,LTD:ct3:cvrVer.001:
dmi.product.name: U90/U100
dmi.product.version: Ver.001
dmi.sys.vendor: MICRO-STAR INTERNATIONAL CO., LTD

[efa (efa)]

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[Ptje_From_Best (pascalvankempen)]

Same issue here; everything worked fine until this afternoon; after doing some things in Vista (as I visited a site with silverlight) I tried to reboot, but the system came up with:

kernel panic - not syncing VFS: unable to mount root fs on unknown-block(0,0)

Issue occurs using ubuntu 2.6.32-24, in generic and recovery mode
In 2.6.32-21, system starts up as it's supposed to do.

If logging is required, feel free to ask (please elaborate a bit on what's required, as it is a while ago I debugging and logging in linux)

Regards

[penalvch (penalvch)]

efa, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please capture the oops following https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Capturing_OOPs ? As well, can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command in the development release from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux <replace-with-bug-number>

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.

Please let us know your results. Thanks in advance.

[efa (efa)]

too late, I'm using:
Linux 02cor2133 3.2.0-24-generic-pae #39-Ubuntu SMP Mon May 21 18:54:21 UTC 2012 i686 i686 i386 GNU/Linux
Ubuntu 12.04 LTS

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]